20x4=−15y7z⇔4x4=−3y7z i have to decided if this is a multiplicative cancellation property, additive cancellation property, zero factor property or a false statement and then identify the quantity that is added or multiplied by both sides but I keep getting the answer wrong.

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =